Yes, Mexico has a very significant business economy and middle class. The reason that is generally overlooked is because the only ties the horde of Mexicans invading this country have to that successful 1st world economy down there are geographic.
Successful, educated people don't pull up their roots.
Really? Have you ever heard of the "brain drain" from India, China, Taiwan, Russia, and Argentina? Why is it that the South Florida real estate market has been so hot due to wealthy Latin Americans buying houses, often as their primary residence.
Ever hear of Albert Einstein? Roberto Goizueta, etc.? Bright and successful people who left for the U.S.
the people risking life and limb to come here, are dirt poor and have no education. They are also the Mestizo, lower mexicans that the mexicans don't want.